Data processing storage unit



FIG. 1 is a top plan view of a data processing storage unit showing my design;

FIG. 2 is a bottom plan view;

FIG. 3 is an elevational view showing one side;

FIG. 4 is an elevational view showing the side opposite that shown in FIG. 3;

FIG. 5 is an end elevational view taken from the left in FIG. 1; and

FIG. 6 is an elevational view taken from the right in FIG. 1. 

The ornamental design for a data processing storage unit, as shown and described. 